API Ammonia Test Strips measure ammonia in freshwater and saltwater aquariums. Dip a strip in the tank water and compare it with the colour chart; the kit reads 0 to 6 ppm. Ammonia builds up from fish waste and uneaten food and can cause gill damage, stress and fish deaths. 25 strips.
How often to test
- New aquariums: every other day until ammonia reads 0 ppm.
- Established aquariums: weekly.
The chart includes recommendations on what to do if ammonia is present. For more information, see the official API Ammonia Test Strips product page.





